Seed priming improves early seedling vigor, growth and productivity of spring maize

来源 :Journal of Integrative Agriculture | 被引量 : 0次 | 上传用户:qpzm007
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Potential of seed priming treatments in improving the performance of early planted maize was evaluated against timely planting. Seeds of maize hybrid FH-810 were soaked in water(hydropriming), Ca Cl2(2.2%, osmopriming), moringa leaf extracts(MLE 3.3%, osmopriming) and salicylic acid(SA, 50 mg L–1, hormonal priming) each for 18 h. Untreated and hydroprimed seeds were taken as control. Seeds primed with SA took less time in emergence and had high vigor in early planted maize. Amongst treatments, hormonal priming, reduced the electrical conductivity, increased the leaf relative and chlorophyll contents followed by osmopriming with Ca Cl2 at seedling stage. Likewise, plant height, grain rows and 1 000-grain weight, grain and biological yield and harvest index were also improved by seed priming; however hormonal priming and osmopriming with MLE were more effective in this regard. Improved yield performance by hormonal priming or osmopriming with MLE in early planting primarily owed to increased leaf area index, crop growth and net assimilation rates, and maintenance of green leaf area at maturity. In conclusion, osmopriming with MLE and hormonal priming with SA were the most economical treatments in improving productivity of early planted spring maize through stimulation of early seedling growth at low temperature. Potential of seed priming treatments in improving the performance of early planted maize was evaluated against timely planting. Seeds of maize hybrid FH-810 were soaked in water (hydropriming), CaCl2 (2.2% osmopriming), moringa leaf extracts (MLE 3.3% , osmopriming) and salicylic acid (SA, 50 mg L-1, hormonal priming) for 18 h each. Untreated and hydroprimed seeds were taken as control. Seeds primed with SA took less time in emergence and had high vigor in early planted maize. Amongst treatments, hormonal priming, reduced the electrical conductivity, increased the leaf relative and chlorophyll contents followed by osmopriming with Ca Cl2 at seedling stage. also improved by seed priming; however, hormonal priming and osmopriming with MLE were more effective in this regard. Improved yield performance by hormonal priming or osmopriming with MLE in early planting reserve owed to inc reased leaf area index, crop growth and net assimilation rates, and maintenance of green leaf area at maturity. In conclusion, osmopriming with MLE and hormonal priming with SA were the most economical treatments in improving productivity of early planted spring maize through stimulation of early seedling growth at low temperature.
其他文献
RNA sequencing of the sensitive GH01 variety of Brassica napus L. seedling roots under 12 h of waterlogging was compared with previously published data of the Z
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
期刊
春夏晚卧早起,秋冬晚起早眠,夏不取极凉,冬不取极热。夜寒濯足,勿露星月下,勿眠卧讴唱,勿卧留灯烛,勿昼卧,勿坐卧当风,勿卧湿处,勿卧发言语,勿夜说梦。枕不欲高,睡宜侧卧屈膝
西吉县谷子种植面积2万亩,在全县19个乡镇均有分布。2009年从甘肃引进谷子全膜双垄沟播栽培技术,集覆盖抑蒸、膜面集雨、垄沟种植为一体,最大限度的发挥了其集雨、保墒、增温
冰岛:世界可再生能源比例最高的国家rn冰岛位于北大西洋靠近北极圈的海域,是欧洲第二大岛国.全国面积为10.3 万平方公里,人口约33万,拥有丰富的水能资源和地热资源.冰岛是一
期刊
中国林科院花卉中心通过多年的收集和引种,先后收集了我国多达60个以上的野生石斛兰原种。通过适宜基质筛选试验,环境温、湿度调控处理,催芽、催根、促花等多种措施 China A
The grain yield of maize has increased continuously in past decades, largely through hybrid innovation, cultivation technology, and in particular, recent geneti
造纸法烟草薄片具有诸多优点并在中国取得了广泛的应用,本文简要介绍造纸法烟草薄片,从生产工艺、原料及配方两个方面进行了综述,并对其在新型烟草制品中的应用情况进行了追
水蕨是一种在水沟、水田及沼泽地生长的蕨类植物。其生长环境特殊,叶形多变,可作为观赏植物或净化水体的环境植物。水蕨养护简单,在水体中固定好根系即可。可种植在水缸、花
航运业巨头马士基航运日前宣布,计划到2050年实现净零碳排放(net Zero CO2 emission)目标.此言一出,在业界引发争议.国际海事组织(IMO)、经济合作与发展组织(OECD)和欧盟委员
期刊